First report of Xyllela fastidiosa on grapevine in Baja California (MX)
In summer 1995, characteristic symptoms of Pierce’s disease (caused by Xyllela fastidiosa - EPPO A1 quarantine pest) were observed in grapevines grown in the Guadalupe Valley, Baja California, in Mexico. Symptoms were characterized by leaf scorching, attachment of petioles to the cane, irregular maturing of cane bark, wilting and drying of fruit clusters. DAS-ELISA tests were carried out in eleven grape fields and positive results were obtained from four fields. Affected varieties were the following: Palomino, French Colombard, Chenin Blanc and Chardonnay. The author pointed out that this is the first report of Pierce’s disease in Baja California, and this also confirms the presence of the bacterium in Mexico.
Sources
Guevara, J. (1997) Occurrence of Pierce’s disease (Xyllela fastidiosa) in grape of the Guadalupe Valley, Baja California, Mexico.
Abstract of a paper to be presented at the APS Annual Meeting, Rochester (US), 1997-08-09/13.
Phytopathology, 87 (6), Supplement, S36.